GCC Code Coverage Report

Directory: ./
File: tasks/kutergin_a_multidim_trapezoid/tbb/src/ops_tbb.cpp
Date: 2026-06-04 20:25:32
Exec Total Coverage
Lines: 34 34 100.0%
Functions: 6 6 100.0%
Branches: 25 42 59.5%
Line Branch Exec Source
1 #include "kutergin_a_multidim_trapezoid/tbb/include/ops_tbb.hpp"
2
3 #include <tbb/tbb.h>
4
5 #include <algorithm>
6 #include <cmath>
7 #include <cstddef>
8 #include <functional>
9 #include <utility>
10 #include <vector>
11
12 #include "kutergin_a_multidim_trapezoid/common/include/common.hpp"
13
14 namespace kutergin_a_multidim_trapezoid {
15 namespace {
16
17 bool ValidateBorders(const std::vector<std::pair<double, double>> &borders) {
18 return std::ranges::all_of(
19
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 80 borders, [](const auto &p) { return std::isfinite(p.first) && std::isfinite(p.second) && (p.first < p.second); });
20 }
21
22 } // namespace
23
24
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 48 KuterginAMultidimTrapezoidTBB::KuterginAMultidimTrapezoidTBB(const InType &in) {
25 SetTypeOfTask(GetStaticTypeOfTask());
26 GetInput() = in;
27 48 GetOutput() = 0.0;
28 48 }
29
30
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 48 bool KuterginAMultidimTrapezoidTBB::ValidationImpl() {
31 const auto &[func, borders, n] = GetInput();
32
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 48 return func && n > 0 && !borders.empty() && ValidateBorders(borders);
33 }
34
35 48 bool KuterginAMultidimTrapezoidTBB::PreProcessingImpl() {
36 local_input_ = GetInput();
37 48 res_ = 0.0;
38 48 return true;
39 }
40
41 48 bool KuterginAMultidimTrapezoidTBB::RunImpl() {
42 const auto &[func, borders, n] = local_input_;
43 48 const int dim = static_cast<int>(borders.size());
44
45 48 std::vector<double> h(dim);
46 double cell_volume = 1.0;
47
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 128 for (int i = 0; i < dim; ++i) {
48 80 h[i] = (borders[i].second - borders[i].first) / n;
49 80 cell_volume *= h[i];
50 }
51
52 size_t total_points = 1;
53
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 128 for (int i = 0; i < dim; ++i) {
54 80 total_points *= (static_cast<size_t>(n) + 1);
55 }
56
57
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 48 res_ = tbb::parallel_reduce(tbb::blocked_range<size_t>(0, total_points), 0.0,
58
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 48 [=](const tbb::blocked_range<size_t> &r, double local_sum) {
59 13123 std::vector<double> point(dim);
60
61
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 1449171 for (size_t i = r.begin(); i < r.end(); ++i) {
62 double weight = 1.0;
63 size_t temp_idx = i;
64
65
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 5211968 for (int dim_idx = 0; dim_idx < dim; ++dim_idx) {
66 3775920 int coord_idx = static_cast<int>(temp_idx % (n + 1));
67 3775920 temp_idx /= (n + 1);
68
69
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 3775920 point[dim_idx] = borders[dim_idx].first + (coord_idx * h[dim_idx]);
70
71
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 3775920 if (coord_idx == 0 || coord_idx == n) {
72 103040 weight *= 0.5;
73 }
74 }
75 1436048 local_sum += weight * func(point);
76 }
77 13123 return local_sum;
78
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 48 }, std::plus<>()) *
79 cell_volume;
80
81
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 96 return std::isfinite(res_);
82 }
83
84 48 bool KuterginAMultidimTrapezoidTBB::PostProcessingImpl() {
85 48 GetOutput() = res_;
86 48 return true;
87 }
88
89 } // namespace kutergin_a_multidim_trapezoid
90